Payum
PHP Payment processing library. It offers everything you need to work with payments: Credit card & offsite purchasing, subscriptions, payouts etc.
jazzband
Universal payment handling for Django.
Ctrlpanel-gg
CtrlPanel offers an easy-to-use and free billing solution for all starting and experienced hosting providers that seamlessly integrates with the Pterodactyl panel.
drmonkeyninja
Cheatsheet of test payment cards for various payment gateways
shurco
🛒 myCart - shopping cart in 1 file with card and cryptocurrency payment support
mhmdomer
An e-commerce Laravel application from start to finish (excluding payments and shipping) with clean and simple UI